23 lines
775 B
JavaScript
23 lines
775 B
JavaScript
|
'use strict';
|
||
|
|
const { transform, isEqual, isArray, isObject } = require('lodash');
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Find difference between two objects
|
||
|
|
* @param {object} origObj - Source object to compare newObj against
|
||
|
|
* @param {object} newObj - New object with potential changes
|
||
|
|
* @return {object} differences
|
||
|
|
*/
|
||
|
|
const difference = (origObj, newObj) => {
|
||
|
|
function changes(newObj, origObj) {
|
||
|
|
let arrayIndexCounter = 0
|
||
|
|
return transform(newObj, function (result, value, key) {
|
||
|
|
if (!isEqual(value, origObj[key])) {
|
||
|
|
let resultKey = isArray(origObj) ? arrayIndexCounter++ : key
|
||
|
|
result[resultKey] = (isObject(value) && isObject(origObj[key])) ? changes(value, origObj[key]) : value
|
||
|
|
}
|
||
|
|
})
|
||
|
|
}
|
||
|
|
return changes(newObj, origObj)
|
||
|
|
}
|
||
|
|
|
||
|
|
module.exports = difference;
|